Home / 31,879.43-47,812.63-30,298.71

Finding the Fourth Proportional to 31,879.43, 47,812.63 and 30,298.71

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Solution

The fourth proportional to 31,879.43, 47,812.63 and 30,298.71 is: 45,441.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,879.43 : 47,812.63 = 30,298.71 : x
  2. Step 2: Convert to fraction form
    31,879.43/47,812.63 = 30,298.71/x
  3. Step 3: Cross multiply
    31,879.43x = 47,812.63 × 30,298.71
  4. Step 4: Simplify right side
    31,879.43x = 1,448,661,010.71
  5. Step 5: Solve for x
    x = 1,448,661,010.71/31,879.43
  6. Step 6: Final answer
    x = 45,441.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.